138  * usb_register_dev - register a USB device, and ask for a minor number
143  * If CONFIG_USB_DYNAMIC_MINORS is enabled, the minor number will be
145  * enabled, the minor number will be based on the next available free minor,
151  * the minor numbers given out by this function.
161 	int minor;  in usb_register_dev()  local
168 	 * no holes in the minor range.  in usb_register_dev()
175 	if (intf->minor >= 0)  in usb_register_dev()
185 	dev_dbg(&intf->dev, "looking for a minor, starting at %d\n", minor_base);  in usb_register_dev()
188 	for (minor = minor_base; minor < MAX_USB_MINORS; ++minor) {  in usb_register_dev()
189 		if (usb_minors[minor])  in usb_register_dev()
192 		usb_minors[minor] = class_driver->fops;  in usb_register_dev()
193 		intf->minor = minor;  in usb_register_dev()
196 	if (intf->minor < 0) {  in usb_register_dev()
202 	snprintf(name, sizeof(name), class_driver->name, minor - minor_base);  in usb_register_dev()
204 				      MKDEV(USB_MAJOR, minor), class_driver,  in usb_register_dev()
207 		usb_minors[minor] = NULL;  in usb_register_dev()
208 		intf->minor = -1;  in usb_register_dev()
217  * usb_deregister_dev - deregister a USB device's dynamic minor.
222  * when the USB driver is finished with the minor numbers gotten from a
233 	if (intf->minor == -1)  in usb_deregister_dev()
236 	dev_dbg(&intf->dev, "removing %d minor\n", intf->minor);  in usb_deregister_dev()
237 	device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));  in usb_deregister_dev()
240 	usb_minors[intf->minor] = NULL;  in usb_deregister_dev()
244 	intf->minor = -1;  in usb_deregister_dev()